Jose Menchaca thought he and his cousin Candie Dominguez were close, he thought of her as a sister. He had always looked out for her and her children and helped them out in times of need. Unfortunately, for Jose, Candie did not return those feelings.
Sources:
Netflix: I Am A Killer, Season 6: A Mother's Choice Episodes 1 & 2
Netflix features Texas mother that dismembered family member
Woman Gets 30 Years in Prison in Dismemberment Killing – NBC 5 Dallas-Fort Worth
Candie Dominguez Testified About Dismembering & Barbecuing Cousin | Investigation Discovery
Mexikanemi, or Texas Mexican Mafia – Gangs and Prison Hierarchies
The Texas Mexican Mafia, explained
Beyond the Gavel with Judge Ron Rangel Episodes 50 and 51